Cisco Catalyst 3750-X - Page 22

Contents
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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
CHAPTER 22 Configuring Optional Spanning-Tree Features 22-1
Understanding Optional Spanning-Tree Features 22-1
Understanding Port Fast 22-2
Understanding BPDU Guard 22-2
Understanding BPDU Filtering 22-3
Understanding UplinkFast 22-3
Understanding Cross-Stack UplinkFast 22-5
How CSUF Works 22-6
Events that Cause Fast Convergence 22-7
Understanding BackboneFast 22-7
Understanding EtherChannel Guard 22-10
Understanding Root Guard 22-10
Understanding Loop Guard 22-11
Configuring Optional Spanning-Tree Features 22-11
Default Optional Spanning-Tree Configuration 22-12
Optional Spanning-Tree Configuration Guidelines 22-12
Enabling Port Fast 22-12
Enabling BPDU Guard 22-13
Enabling BPDU Filtering 22-14
Enabling UplinkFast for Use with Redundant Links 22-15
Enabling Cross-Stack UplinkFast 22-16
Enabling BackboneFast 22-16
Enabling EtherChannel Guard 22-17
Enabling Root Guard 22-18
Enabling Loop Guard 22-18
Displaying the Spanning-Tree Status 22-19
CHAPTER 23 Configuring Flex Links and the MAC Address-Table Move Update Feature 23-1
Understanding Flex Links and the MAC Address-Table Move Update 23-1
Flex Links 23-1
VLAN Flex Link Load Balancing and Support 23-2
Flex Link Multicast Fast Convergence 23-3
Learning the Other Flex Link Port as the mrouter Port 23-3
Generating IGMP Reports 23-3
Leaking IGMP Reports 23-4
MAC Address-Table Move Update 23-6
Configuring Flex Links and MAC Address-Table Move Update 23-7
Configuration Guidelines 23-7
Default Configuration 23-8